Ornebius is a genus of crickets in the family Mogoplistidae and the tribe Arachnocephalini, erected by Félix Édouard Guérin-Méneville in 1844. Species may be called "common scaled crickets" and have widespread records of distribution, which are discontinuous (and probably incomplete); they include: Africa, Asia, Australia, islands in the Indian and Pacific Oceans, and South America.

 Ornebius (at least the Australian species) are >7.5 mm in length. The tegmen posterior margin has either a continuous black or brown band or three darkened areas. The tibiae of the fore and mid legs are banded. The genital processes are brown to pale brown or whitish. In males, the last abdominal segment is not black between the cerci, and the front of the mirror is not hidden beneath the pronotum.

This genus can be divided into at least seven species groups, with other genera currently (2023) incertae sedis. The Australian fauna comprise three of these groups:

• The Abminga Group have the fore and mid leg tibiae unbanded or only faintly banded, the face not strongly banded, the tenth abdominal tergite without tufts of setae, and the forewings with a continuous dark band on the posterior margin and anteriorly with one or three dark spots.
• The Illaroo Group have the fore and mid leg tibiae strongly banded, the face usually with contrasting markings, the tenth abdominal tergite usually with two tufts of setae near its centre, and the forewings usually with two or three dark markings on the posterior margin (with indistinct dark markings scattered over the remainder).
• The Wandella Group have the fore and mid leg tibiae only faintly banded, the face not strongly banded, the tenth abdominal tergite usually with two tufts of setae near its centre, and the forewings usually with two or three dark markings on the posterior margin (with indistinct dark markings scattered over the remainder).

Species: The Orthoptera Species File lists:
species group abminga Otte & Alexander, 1983
# Ornebius abminga Otte & Alexander, 1983
# Ornebius coorumbena Otte & Alexander, 1983
# Ornebius kalara Otte & Alexander, 1983
# Ornebius karkalo Otte & Alexander, 1983
# Ornebius nigromaculatus (Chopard, 1925)
# Ornebius woomba Otte & Alexander, 1983
species group alii Bhowmik, 1970
# Ornebius alii Bhowmik, 1970
# Ornebius aureus Ingrisch, 2006
# Ornebius carnificare He, Zhang & Ma, 2021
# Ornebius cibodas Ingrisch, 2006
# Ornebius dowwiangkanae Tan, Dawwrueng & Artchawakom, 2015
# Ornebius insculptus Tan & Ingrisch, 2013
# Ornebius peniculatus Ingrisch, 2006
# Ornebius samudra Ingrisch, 2006
# Ornebius tuberculatus Ingrisch, 2006
species group flori Ingrisch, 1998
# Ornebius fastus Yang & Yen, 2001
# Ornebius flori Ingrisch, 1998
# Ornebius marginatus Ingrisch, 1998
# Ornebius pullus Ingrisch, 2006
# Ornebius xinyao Tan, 2015
species group formosanus (Shiraki, 1911)
# Ornebius albalatus Tan & Kamaruddin, 2013
# Ornebius apterus He, 2018
# Ornebius aurumalas He, Zhang & Ma, 2021
# Ornebius formosanus (Shiraki, 1911)
# Ornebius lunam He, Zhang & Ma, 2021
# Ornebius panda He, 2019
# Ornebius polycomus He, 2017
# Ornebius yunnanensis Wang, Zhang & Liu, 2020
species group illaroo Otte & Alexander, 1983
# Ornebius antakira Otte & Alexander, 1983
# Ornebius attunga Otte & Alexander, 1983
# Ornebius baloois Otte & Alexander, 1983
# Ornebius balumba Otte & Alexander, 1983
# Ornebius dandiri Otte & Alexander, 1983
# Ornebius dirkanala Otte & Alexander, 1983
# Ornebius illaroo Otte & Alexander, 1983
# Ornebius jatalinga Otte & Alexander, 1983
# Ornebius jirira Otte & Alexander, 1983
# Ornebius kapunda Otte & Alexander, 1983
# Ornebius lilka Otte & Alexander, 1983
# Ornebius oradala Otte & Alexander, 1983
# Ornebius yarandilla Otte & Alexander, 1983
species group kanetataki (Matsumura, 1904)
# Ornebius bimaculatus (Shiraki, 1930)
# Ornebius bioculatus Tan, Ingrisch, Baroga-Barbecho & Yap, 2019
# Ornebius citrus Ingrisch, 2006
# Ornebius fuscicerci (Shiraki, 1930)
# Ornebius infuscatus (Shiraki, 1930)
# Ornebius kanetataki (Matsumura, 1904)
# Ornebius rubidus Ingrisch, 1998
# Ornebius tampines Tan & Robillard, 2012
# Ornebius vadus Ingrisch, 1998;species group rufonigrus Ingrisch, 1987
# Ornebius alvarezi Tan, Ingrisch, Baroga-Barbecho & Yap, 2019
# Ornebius consternus Ingrisch, 2006
# Ornebius dumoga Ingrisch, 2006
# Ornebius lupus Tan, 2022
# Ornebius rufonigrus Ingrisch, 1987
species group wandella Otte & Alexander, 1983
# Ornebius allambi Otte & Alexander, 1983
# Ornebius aperta Otte & Alexander, 1983
# Ornebius bambara Otte & Alexander, 1983
# Ornebius coomialla Otte & Alexander, 1983
# Ornebius curtipalpis Chopard, 1951
# Ornebius elvalina Otte & Alexander, 1983
# Ornebius gumbalera Otte & Alexander, 1983
# Ornebius immarna Otte & Alexander, 1983
# Ornebius kanya Otte & Alexander, 1983
# Ornebius wandella Otte & Alexander, 1983
species group not assigned
# Ornebius abdominalis (Stål, 1877)
# Ornebius acutus Chopard, 1931
# Ornebius alatus (Saussure, 1877)
# Ornebius albipalpus Ingrisch, 2006
# Ornebius †ambericus Vickery & Poinar, 1994
# Ornebius angustifrons (Chopard, 1930)
# Ornebius angustus Ingrisch, 2006
# Ornebius annulatus (Hebard, 1928)
# Ornebius barbicornis (Strohecker, 1953)
# Ornebius bogor Ingrisch, 2006
# Ornebius brasilianus (Saussure, 1877)
# Ornebius brevipalpis Chopard, 1930
# Ornebius brevipalpus Ingrisch, 2006
# Ornebius brevipennis Chopard, 1931
# Ornebius cucullatus (Bolívar, 1889)
# Ornebius cydistos Otte, 2006
# Ornebius dilatatus (Brancsik, 1901)
# Ornebius elegantulus Bolívar, 1912
# Ornebius euryxiphus Chopard, 1958
# Ornebius fasciatus (Brunner von Wattenwyl, 1893)
# Ornebius flavipalpis (Kirby, 1900)
# Ornebius fuscipennis (Chopard, 1929)
# Ornebius guerini (Bolívar, 1900)
# Ornebius guerinianus (Saussure, 1877)
# Ornebius howensis Chopard, 1951
# Ornebius imitatus Ingrisch, 2006
# Ornebius karnyi Chopard, 1929
# Ornebius komodensis Bey-Bienko, 1966
# Ornebius leai Chopard, 1951
# Ornebius lepismoides (McNeill, 1901)
# Ornebius longicaudus (Saussure, 1877)
# Ornebius longipennis (Shiraki, 1930)
# Ornebius luteicercis Chopard, 1957
# Ornebius medius (Hebard, 1928)
# Ornebius mexicanus (Saussure, 1897)
# Ornebius minusculus (Chopard, 1929)
# Ornebius nigrifrons Chopard, 1969
# Ornebius nigripalpis Guérin-Méneville, 1844
# Ornebius nigripennis (Chopard, 1929)
# Ornebius nigripes Chopard, 1927
# Ornebius nigrirostris Chopard, 1969
# Ornebius noumeensis (Bolívar, 1882)
# Ornebius novarae (Saussure, 1877)
# Ornebius obscuripennis (Chopard, 1930)
# Ornebius occultus (Saussure, 1877)
# Ornebius pendleburyi Chopard, 1969
# Ornebius peruviensis Chopard, 1913
# Ornebius robustus (Hebard, 1925)
# Ornebius rotundatus Chopard, 1931
# Ornebius scotops (Hebard, 1928)
# Ornebius serratus Ingrisch, 2006
# Ornebius stenus Gorochov, 1994
# Ornebius succineus Bolívar, 1912
# Ornebius syrticus Bolívar, 1912
# Ornebius testaceus Chopard, 1913
# Ornebius unmadacitra Fernando, 1958
# Ornebius validus (Bolívar, 1895)
# Ornebius varipennis Chopard, 1936
# Ornebius xanthopterus Guérin-Méneville, 1844 - type species (by subsequent designation)